Abstract: A preferably sealed lead-acid battery having a microfine glass separator pasting paper integrated with its adjoining plate, and the associated method by which the separator pasting paper is applied directly to the freshly pasted plate.

Abstract: A through-the-wall intercell connection for adjacent cells of a battery in which integral extensions of the current collector tabs emanating from the respective plates are directly welded together at the partition opening. The individual tabs are bent along a smooth curve which, together with interposed cushioned insulating material between bent tabs, lends vibration resistance to the intercell connection.

Abstract: Thermoplastic battery cover and container piece parts are fused together using vibratory energy, particularly ultrasonic welding, in which the horn has a depending skirt extending along an outer wall of the container and which serves to maintain the cover and container in mutual alignment and simultaneously contain the flow of the melt (flash). In another aspect, a particular interference joint between the components is described featuring a continuous ramp of 50-70 degrees and producing an interference fit for an improved weld. The invention is also directed to a cell or battery formed according to the method of the invention, as well as the horn.

Abstract: A mandrel useful in the spiral winding of flexible strip members is described including a pair of juxtaposed curvilinear perimetric driving portions which are offset laterally relative to one another and which have a slot or slots for receiving the elements to be wound. A process and winder are also described for the spiral winding of the strip members into a coiled element, e.g., a coiled capacitor or spirally wound battery cell pack.